The Dark Father is a powerful Daemon Knight and is the arch champion of the Doom Gauntlet.

The Dark Father is only seen in Dungeon Doom once all the other five champions of the gauntlet have been slain.
It is a formidable foe that has an almost neverending ammount of hitpoints and mana. In addition to dangerous melee and magic attacks it also has the ability to throw unholy bones after players. These bones will if they are not destroyed with a knife develop into lesser undead creatures.

The Dark Father can appear with any of the following names: Ankou, Arhaios Ophis, Armarus, Arsat, Azazel, Ga'ahp, Grigorus, Hrallath, Heksen, Karnax, Keelus, Kra'an, Peinsluth, Peirazo, Ponerus, Taet Nu'uhn, Therion, Turi'el and Vairocan. All of these names will be followed by "the Dark Father".